Mouth spreader



y 1936- H. o. VOVN ROSENBERG 2,041,034

MOUTH SPREADER Filed Feb. 18, 1935 INVENTOR HILTON O.VON ROSENBERG Wm /Ww% I ATTO RNEYs Patented May 19, 1936 I i UNITED STATES PATENT OFFIQE MOUTH SPREADER Hilton 0. von Rosenberg, Hallettsville, Tex., as-

signor to Parke, Davis & Company, Detroit, Mich, a corporation of Michigan Application February 18, 1935, Serial No. 7,141 Claims. (01. 128-14) The invention relates to mouth spreaders such groove serves to guide the pintle into engagement as are used in holding the mouths of animals with the desired aperture after the pintle at the open during the administration of capsules. It is opposite end of the bar has been engaged with the object of the invention to obtain a constructhe corresponding aperture in the opposite fur- :tion such that a single instrument may be used cation. The ends of the furcations are slightly for different animals, large and small, and such flared outward as indicated at H and if desired that one may quickly adjust it to correspond to the groove G may be provided with a cross groove the size of the mouth and the extent of opening G intermediate the apertures E for engagement thereof. To this end the invention consists in of the pintle from one side of the furcation.

the construction as hereinafter set forth. With the construction as described, in use, the 10 In the drawing: cross bar F is first adjusted in position to suit Fig. 1 is a perspective view illustrating the the size of mouth of the animal operated upon, spreader in use; after which the cross bars F and D are inserted Fig. 2 is a front elevation partly in section; in the mouth and the frame then turned to spread Fig. 3 is a perspective view of one of the furthe jaws apart. In this turning movement the 15 cations of the spreader showing the manner of fact that the cross bar F is a roller facilitates its adjustably engaging the cross bar therewith. movement to the desired position. The capsule My improvement comprises essentially a may then be inserted in the mouth by the use of handled frame bifurcated to embrace the muzzle suitable forceps which, however, form no part of the animal and having a pair of cross bars 106- of the present invention. 20

tween the furcations spaced from each other to What I claim as my invention is: correspond to the distance that the mouth is to 1. A mouth spreader comprising a bifurcated be opened. To adapt the instrument for use frame, a cross bar extending between the furcawith animals of different size, these cross bars tions of said frame and rigidly secured thereto,

are relatively adjustable to enlarge or diminish said furcations being resiliently yieldable and 25 the space therebetween. provided with a plurality of pairs of aligned aper- In detail, A is the frame, preferably formed tures differently spaced from said cross bar and of a flat metal bar bent to form a handle portion a second cross bar engageable alternatively with B and the bifurcated portion C. D is a cross bar the different pairs of aligned apertures by the extending between the central portion of the fursp e n of Saidl'esilient Q' l 30 cations and rigidly secured thereto at its opposite 2. A mouth spre Comprising a bifurcated ends. Outward beyond this cross bar the furframe having a cros bar extending between t cations are provided with a series of apertures central portion of the furcations thereof and rig- E for receiving a second cross bar F. This is d y e u d thereto at its pp ends, the l formed with pintles F of reduced diameter at its cations beyond said bar being resiliently flexible 35 opposite ends adapted to engage the apertures a d being provided With a plurality of P s 9 E and with shoulders F between the pintles and ligne apertures differently spaced m i the larger diameter of the bar which shoulders are cross bar, a second cross bar having p e t spaced from each other to correspond to the its Opposite ends of reduced; diameter and 011 40 space between the furcations. The cross ba F ders at the inner ends of said pintles spaced from may be engaged with any pair of aligned apereach other to correspond to the distance between tures E in the furcations C by spreading the e the inner faces of said furcations whereby the furcations which, being formed of resiliently fiexpintles of said bar may be alternatively e gaged ible material, will permit of such action. When with the pairs of aligned apertures to vary the the pintles are engaged with the apertures the spacing betwe n he me and the stationary bar. 45 furcations will spring back against the shoulders 3. A mouth spreader comprising a bifurcated F preventing disengagement of the bar. Howframe having a cross bar extending between the ever, the bar which is circular in cross section is central portion of the furcations thereof and rigfree to turn as a roller, this facilitating its inidly secured thereto, the portion of said furcatroduction into the animals mouth. tions beyond said cross bar being resiliently flex- 50 To facilitate the engagement and disengageible and provided with a plurality of pairs of ment of the bar F, one of the furcations is prefaligned apertures therein, said apertures being erably provided with a groove G on its inner face of a diameter less than the diameter of said cross extending from the outer end of the furcation inbar, and a second cross bar having pintles at its ward to the innermost of the apertures E. This opposite ends for engaging said apertures and 55 shoulders" at the inner ends of said pintles spaced from each other to correspond to the distance between the inner faces of said furcations, the pintles of said bar being engageable' alternatively with the pairs of aligned apertures by the spread- 7 ing of the furcations of said frame and when en- 7 tion of the furcations beyond said bar being'regaged permitting the turning of said bar as a roller. 7

4. A mouth spreader comprising a'bifurcated frame having a cross bar extending between the central portion of the furcations thereof and rigidly secured thereto at its opposite ends, the porsiliently flexible and having a plurality of pairs of aligned apertures therein, one of said furcations being further provided with a groove in its inner face extending in alignment with said 7 apertures and a second cross bar having pintles at its opposite ends of a diameter less than that of the bar with shoulders at theinner ends of said pintles spaced from each other to correspond to the distance between the inner faces of said furcations, said bar being adjustably engageable with the diiferent pairs of aligned apertures, but engaging the pintle at one end with one of said apertures and engaging the opposite pintle with said groove to guide the same into engagement with the aligned aperture. o 5. A mouth spreader comprising a bifurcated handled frame having a cross bar extending between the central portion of the furcations thereof and rigidly secured thereto at its opposite ends, a portion of said furcations beyond said bar being resiliently flexible. and provided with a plurality of pairs of aligned apertures therein, one of said furcations having a groove in its inner l 3C8 extending from the outer end' of the furcation to the several apertures and with a cross groove extending from the side of the furcation to said first mentioned groove intermediate a pair of apertures, and a second cross bar provided at its opposite end with'pintles for engaging the aligned apertures and With shoulders at the in- -ner ends of said furcations spaced to correspond to the distance between the inner faces of said furcations, said cross bar being engageable with different pairsof aligned apertures by the insertion of the pintle at one endinto one aperture and the 'guidingof the pintle at the opposite end in said grooves into registration with the aligned aperturel' V HILTON O. VON ROSENBERG. 

